function s1_generate_a_series_of_files(){
for i in {1..100};
do
echo $i>/tmp/new_file$i;
done
}
function s2_list_4_files_in_long_format_about_account_and_group(){
ls -1Ah /etc/{passwd,shadow,group,gshadow} | sort -d
}
function s3_find_items_related_to_given_username(){
grep -h $1 /etc/{passwd,shadow} |sort -d
}
function s4_find_items_related_to_given_name(){
grep -h $1 /etc/{group,gshadow} | sort -d
if ! command -v s4_find_items_related_to_given_group_name &> /dev/null;then
echo "Command 's4_find_items_related_to_given_group_name' not found."
exit 1
fi
}
function s5_create_groups_for_given_group_names(){
groupadd rnd && groupadd itoperation
}
function s6_create_users_and_set_their_group_as_required(){
useradd -G rnd adam && useradd -G rnd bob && useradd -G itoperation calvin && useradd -G itoperation david && useradd -G rnd edward
}
function s7_change_users_shell(){
usermod -s /usr/bin/sh adam && usermod -s /usr/bin/sh edward
if [ "$(some_command)" != "ecpected_output" ];then
echo "Test failed: Command output did not match expected result."
exit 1
fi
}
function s8_set_password_change_policy(){
passwd -n 10 -x 60 -w 10 adam
passwd -n 10 -x 60 -w 10 bob
passwd -n 10 -x 60 -w 10 calvin
passwd -n 10 -x 60 -w 10 david
passwd -n 10 -x 60 -w 10 edward
}
function s9_set_password_for_five_usere(){
passwords=("$1" "$2" "$3" "$4" "$5")
usernames=("adam" "bob" "calvin" "david" "edward")
for i in $(seq 0 4);
do
echo "${usernames[$i]}:${passwords[$i]}" | sudo chpasswd
done
}
function s10_lock_bobs_password(){
sudo usermod --lock bob
}
function s11_include_adam_into_wheel_group(){
sudo usermod -aG wheel adam
}
function s12_change_files_permission(){
for i in $(seq 3 3 99);do
sudo chmod 644 file /tmp/new_file$i
ls -l filename
done
}
